Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
thu sach » tu sach, thuat sach, thuoc sach
cham luc » nhan luc, cham cuu, chat lua
va thanh » gia thanh, ban thanh, va tinh
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
hieu vu » hieu va, hieu ve, hieu su
sach ty » sach y, sach tu, sach thu
cua tre » cuu tre, cua triet, dua tren
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ty nang xa hoi. hieu vu ((cham luc) OR (cham soc)) va thanh vai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty nang xa hoi. hieu vu ((cham luc) OR (cham soc)) va thanh vai ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty nang xa hoi. hieu vu ((cham luc) OR (cham soc)) va thanh vai ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: thu sach ty nang xa hoi. hieu vu ((cham luc) OR (cham soc)) va thanh vai ((cua tre) or (cua te))*.